TW508910B - Downlink power control for multiple downlink time slots in TDD communication systems - Google Patents

Downlink power control for multiple downlink time slots in TDD communication systems Download PDF

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Publication number
TW508910B
TW508910B TW90110351A TW90110351A TW508910B TW 508910 B TW508910 B TW 508910B TW 90110351 A TW90110351 A TW 90110351A TW 90110351 A TW90110351 A TW 90110351A TW 508910 B TW508910 B TW 508910B
Authority
TW
Taiwan
Prior art keywords
time slots
communication
downlink
power level
power control
Prior art date
Application number
TW90110351A
Inventor
Eldad Zeria
Steven E Terry
Ariela Zeira
Original Assignee
Interdigital Tech Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US20075600P priority Critical
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Application granted granted Critical
Publication of TW508910B publication Critical patent/TW508910B/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/16Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1694Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/345Interference values
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/08Closed loop power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/12Outer and inner loops
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/143Downlink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/20TPC being performed according to specific parameters using error rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/0406Wireless resource allocation involving control information exchange between nodes
    • H04W72/042Wireless resource allocation involving control information exchange between nodes in downlink direction of a wireless link, i.e. towards terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource
    • H04W72/0446Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource the resource being a slot, sub-slot or frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource
    • H04W72/0473Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource the resource being transmission power
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/08Wireless resource allocation where an allocation plan is defined based on quality criteria
    • H04W72/082Wireless resource allocation where an allocation plan is defined based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/20Monitoring; Testing of receivers
    • H04B17/24Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/10Open loop power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo

Abstract

The present invention is a method and system for controlling downlink transmission power levels in a spread spectrum time division communication system having frames with time slots for communication, which receives at a user equipment (UE) a downlink communication from a base station and determines an error rate of the received communication. The UE then produces power level adjustments for each of the time slots based in part on the error rate and transmits an uplink communication to the base station which includes the power level adjustment for each of the time slots. In response to the power level adjustments transmission power level is set for each time slot in the downlink communication.
TW90110351A 2000-05-01 2001-04-30 Downlink power control for multiple downlink time slots in TDD communication systems TW508910B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US20075600P true 2000-05-01 2000-05-01

Publications (1)

Publication Number Publication Date
TW508910B true TW508910B (en) 2002-11-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
TW90110351A TW508910B (en) 2000-05-01 2001-04-30 Downlink power control for multiple downlink time slots in TDD communication systems

Country Status (18)

Country Link
US (4) US8045520B2 (en)
EP (2) EP1297635B1 (en)
JP (2) JP4729231B2 (en)
KR (5) KR100867169B1 (en)
CN (2) CN101018081A (en)
AT (1) AT322107T (en)
AU (1) AU6107001A (en)
BR (1) BR0110674A (en)
CA (2) CA2407990C (en)
DE (2) DE60118360T2 (en)
DK (1) DK1297635T3 (en)
ES (1) ES2209673T3 (en)
HK (1) HK1058582A1 (en)
IL (2) IL152556A (en)
MX (1) MXPA02010710A (en)
NO (2) NO20025189L (en)
TW (1) TW508910B (en)
WO (1) WO2001084740A2 (en)

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US8442572B2 (en) 2006-09-08 2013-05-14 Qualcomm Incorporated Method and apparatus for adjustments for delta-based power control in wireless communication systems
US8452316B2 (en) 2004-06-18 2013-05-28 Qualcomm Incorporated Power control for a wireless communication system utilizing orthogonal multiplexing
US8488487B2 (en) 2006-09-08 2013-07-16 Qualcomm Incorporated Method and apparatus for fast other sector interference (OSI) adjustment
US8516314B2 (en) 2004-06-18 2013-08-20 Qualcomm Incorporated Robust erasure detection and erasure-rate-based closed loop power control
US8849210B2 (en) 2005-03-15 2014-09-30 Qualcomm Incorporated Interference control in a wireless communication system
US8848574B2 (en) 2005-03-15 2014-09-30 Qualcomm Incorporated Interference control in a wireless communication system
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Cited By (13)

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Publication number Priority date Publication date Assignee Title
US8516314B2 (en) 2004-06-18 2013-08-20 Qualcomm Incorporated Robust erasure detection and erasure-rate-based closed loop power control
US8543152B2 (en) 2004-06-18 2013-09-24 Qualcomm Incorporated Power control for a wireless communication system utilizing orthogonal multiplexing
US8452316B2 (en) 2004-06-18 2013-05-28 Qualcomm Incorporated Power control for a wireless communication system utilizing orthogonal multiplexing
US8478202B2 (en) 2004-06-18 2013-07-02 Qualcomm Incorporated Power control for a wireless communication system utilizing orthogonal multiplexing
US7962826B2 (en) 2004-07-20 2011-06-14 Qualcomm Incorporated Reverse link power control in an orthogonal system
US8942639B2 (en) 2005-03-15 2015-01-27 Qualcomm Incorporated Interference control in a wireless communication system
US8849210B2 (en) 2005-03-15 2014-09-30 Qualcomm Incorporated Interference control in a wireless communication system
US8848574B2 (en) 2005-03-15 2014-09-30 Qualcomm Incorporated Interference control in a wireless communication system
US8879425B2 (en) 2005-03-15 2014-11-04 Qualcomm Incorporated Interference control in a wireless communication system
US8929908B2 (en) 2005-10-27 2015-01-06 Qualcomm Incorporated Method and apparatus for estimating reverse link loading in a wireless communication system
US8670777B2 (en) 2006-09-08 2014-03-11 Qualcomm Incorporated Method and apparatus for fast other sector interference (OSI) adjustment
US8488487B2 (en) 2006-09-08 2013-07-16 Qualcomm Incorporated Method and apparatus for fast other sector interference (OSI) adjustment
US8442572B2 (en) 2006-09-08 2013-05-14 Qualcomm Incorporated Method and apparatus for adjustments for delta-based power control in wireless communication systems

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Publication number Publication date
EP1670154A3 (en) 2014-05-21
KR100860803B1 (en) 2008-09-30
NO337433B1 (en) 2016-04-11
IL152556D0 (en) 2003-05-29
JP2003535495A (en) 2003-11-25
NO20025189D0 (en) 2002-10-29
JP4729231B2 (en) 2011-07-20
IL152556A (en) 2009-06-15
DK1297635T3 (en) 2006-07-24
CA2407990C (en) 2009-06-23
CN101018081A (en) 2007-08-15
AT322107T (en) 2006-04-15
KR100887277B1 (en) 2009-03-06
KR20070120166A (en) 2007-12-21
US9537595B2 (en) 2017-01-03
WO2001084740A2 (en) 2001-11-08
ES2209673T3 (en) 2006-11-16
CA2407990A1 (en) 2001-11-08
IL194766A (en) 2011-11-30
WO2001084740A3 (en) 2002-04-18
HK1058582A1 (en) 2008-02-15
ES2209673T1 (en) 2004-07-01
CN1327723C (en) 2007-07-18
AU6107001A (en) 2001-11-12
EP1297635B1 (en) 2006-03-29
EP1297635A2 (en) 2003-04-02
BR0110674A (en) 2003-04-29
EP1670154A2 (en) 2006-06-14
KR20050099643A (en) 2005-10-14
CA2662929A1 (en) 2001-11-08
MXPA02010710A (en) 2003-09-25
NO20100586A (en) 2002-12-20
KR20070058708A (en) 2007-06-08
CN1449604A (en) 2003-10-15
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NO20025189L (en) 2002-12-20
IL194766D0 (en) 2011-08-01
US20020031105A1 (en) 2002-03-14
DE1297635T1 (en) 2003-11-27
US20140036741A1 (en) 2014-02-06
US9143254B2 (en) 2015-09-22
US8045520B2 (en) 2011-10-25
KR100860804B1 (en) 2008-09-30
KR20080097491A (en) 2008-11-05
US20120039209A1 (en) 2012-02-16
JP2008048437A (en) 2008-02-28
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US20150351046A1 (en) 2015-12-03
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JP4841525B2 (en) 2011-12-21
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KR20080036229A (en) 2008-04-25

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